Embedded spring type dual locknut

Abstract

The invention belongs to the technical field of locking fasteners and discloses an embedded spring type dual locknut. The embedded spring type dual locknut comprises a nut body, a spiral spring component and a gasket, wherein the spiral spring component is arranged at the upper end of the nut body, and the gasket is arranged at the lower end of the nut; a gasket slot is formed in the lower end surface of the nut body, clamping slots are formed in the bottom of the gasket slot to divide the bottom of the gasket slot into multiple bosses, the top end surfaces of the bosses are inclined planes orinclined curved surfaces, and the tip angles of the top end surfaces are larger than a spiral angle of a central threaded hole; the gasket is of a round ring shape and is located in the gasket slot,and the inner diameter of the gasket is larger than or equal to the large thread diameter of the central threaded hole; protruded blocks are arranged on the end surface on one side of the gasket; anda baffling block is further arranged between two adjacent protruded blocks. When the nut has a loose trend, the nut body can be lifted by virtue of the action force between the protruded blocks and the bosses, and the action force betweenthe threads on the nut body and a bolt or a screw is strengthened, so that the friction force between the threads and the bolt or the screw rod is increased, andthe locking purpose is achieved.

Description

technical field [0001] The invention belongs to the technical field of anti-loosening fasteners, in particular to an anti-loosening nut, in particular to a spring-embedded double anti-loosening nut. Background technique [0002] In many fields such as industrial production, automobile, aerospace and rail transit, threaded fasteners are widely used in equipment to achieve connections, but for high-strength impact loads and alternating loads, the anti-loosening of threaded fasteners The detachment problem has not been effectively resolved. [0003] For the anti-loosening requirements of threaded fasteners, there are a large number of nuts on the market, mainly through mechanical stop, punching stop, riveting and other methods to achieve anti-loosening, but the effect is not ideal; once the nut is loose, the bolt will The effective connection with the nut will quickly loosen and fail, and the reliability cannot be guaranteed. [0004] In addition, the existing nuts are diffic...

AI Technical Summary

Problems solved by technology

[0002] In many fields such as industrial production, automobile, aerospace and rail transit, threaded fasteners are widely used in equipment to achieve connections, but for high-strength impact loads and alternating loads, the anti-loosening of threaded fasteners The problem of detachment has not been effectively resolved

[0003] For the anti-loosening requirements of threaded fasteners, there are a large number of nuts on the market, mainly through mechanical stop, edge punching stop, riveting and other methods to achieve anti-loosening, but the effect is not ideal; once the nut is loose, the bolt will The effective connection with the nut will quickly loosen and fail, and the reliability cannot be guaranteed

[0004] In addition, the existing nuts are difficult to produce and process, high production cost, low yield and reliability cannot be guaranteed; during maintenance, some special-shaped nuts must be disassembled with special tools, the disassembly process is cumbersome, time-consuming and laborious, and extremely inconvenient , leading to low work efficiency

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